2. 考研
  3. To conserve energy, estate developers are encouraged to build houses that can retain heat in winter.

To conserve energy, estate developers are encouraged to build houses that can retain heat in winter.

admin2016-08-19  41
问题 To conserve energy, estate developers are encouraged to build houses that can retain heat in winter.
选项 A、attain
B、keep
C、release
D、generate
答案B
解析 retain的意思是“保留，留下，保持”，与keep意思相近。attain“实现，得到”：release“释放，排放，发行，解脱”；generate“产生，引发”。故选B。
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